US 7,402,346 B2 · Organic electroluminescent devices

Abstract

An organic electroluminescent device comprising an anode, an electroluminescent region, and a cathode. The luminescent region comprises a light-emitting material of Formula I wherein R1 is independently selected from the group consisting of a hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, an amino group, an alkyl amino group, and an aryl amino group; R2 is independently selected from the group consisting of hydrogen, a hetero atom, and an alkyl group; R3 is independently selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, a halogen atom, and a cyano group; and, R4 is independently selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, a halogen atom, and a cyano group.

Claims13

Dependent claims

An organic light-emitting device comprising an anode, a cathode, and an eluminescent region disposed between said anode and said cathode, said eluminescent comprising a light-emitting material of the formula

wherein R1 is independently selected from the group consisting of an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, an amino group, an alkyl amino group, and an aryl amino group;
R2 is independently selected from the group consisting of hydrogen, and an alkyl group;
R3 is independently selected from the group consisting of hydrogen, an alkyl group, an alkoxy group, a halogen atom, and a cyano group;
and, R4 is independently selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, a halogen atom, and a cyano group.

1 more element

A display device comprising:

a first electrode;
a second electrode;
and
a luminescent region disposed between said first and said second electrode, said luminescent region comprising a first charge transport layer, light-emitting layer, and a second charge transport layer,
wherein said light-emitting layer comprises a light-emitting material of the Formula I:
wherein R1 is independently selected from the group consisting of an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, an amino group, an alkyl amino group, and an aryl amino group;
R2 is independently selected from the group consisting of hydrogen, and an alkyl group;
R3 is independently selected from the group consisting of hydrogen, an alkyl group, an alkoxy group, a halogen atom, and a cyano group;
and, R4 is independently selected from the group consisting of hydrogen, an alkyl group, an aryl group, a heteroaryl group, an alkoxy group, a halogen atom, and a cyano group.

6 more elements

Dependencies are inferred from the claim text.

Organic electroluminescent devices

Life of this patent

Organic electroluminescent devices

Life of this patent

Abstract

Claims13